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Roughness Effects on Ship Design and Operation
RISE Research Institutes of Sweden, Safety and Transport, Maritime department. (SSPA)ORCID iD: 0009-0005-2123-8880
RISE Research Institutes of Sweden, Safety and Transport, Maritime department. (SSPA)
RISE Research Institutes of Sweden, Safety and Transport, Maritime department. (SSPA)ORCID iD: 0000-0002-6266-2320
2021 (English)In: Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 63), Springer Science and Business Media Deutschland GmbH , 2021, p. 186-204Conference paper, Published paper (Refereed)
Abstract [en]

Hull surface condition plays an important role for ships performances for new-built ships as well as ships in operation since the drag penalties due to hull roughness are substantial. It is a standard practice that ship design is based on performance evaluation by model testing of ship models with hydrodynamically smooth surface and the increase of resistance for new build condition is added by roughness correlation allowance based on empirical formula. Surface roughness effects beyond the new build condition are seldom considered in the design process. The question is whether hull roughness affects the flow characteristics to such extend that it influence with the resulting design. This is especially important for propellers or energy saving devices which are operating around the stern of the ship where the roughness effects on flow characteristics are most pronounced. This paper will discuss some practical questions related to the effect of hull roughness, both in terms flow characteristics, power increase and impact on ship design and operational practice. 

Place, publisher, year, edition, pages
Springer Science and Business Media Deutschland GmbH , 2021. p. 186-204
Keywords [en]
Roughness effect, Ship design, Ship operation, Energy conservation, Hulls (ship), Ship models, Ship propellers, Ship propulsion, Ship testing, Shipbuilding, Surface roughness, Empirical formulas, Energy-saving devices, Flow charac-teristics, Operational practices, Roughness correlation, Standard practices, Surface conditions, Surface roughness effects, Structural design
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:ri:diva-57280DOI: 10.1007/978-981-15-4624-2_11Scopus ID: 2-s2.0-85092762488ISBN: 9789811546235 (print)OAI: oai:DiVA.org:ri-57280DiVA, id: diva2:1616373
Conference
PRADS 2019: Practical Design of Ships and Other Floating Structures. 22 September 2019 through 26 September 2019
Available from: 2021-12-02 Created: 2021-12-02 Last updated: 2024-02-15Bibliographically approved

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Kim, KeunjaeWerner, Sofia

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